PLATE XC 



PAGE 



Figs. 1, 2. HOMALONOTUS sWARTZi Ohern n. sp 495 



Pygidium of type. Oriskany formation, Ridgely member, Berkeley 

 Springs, W. Va. 



Fig. 3. HOMALONOTUS VANUXEMI Hall 496 



Complete cephalon. Oriskany formation, Ridgely member, Franklin, 

 W. Va. 



